2009 INFINITI QX56 change time

BCS
DIAGNOSIS SYSTEM (BCM)BCS-29
< FUNCTION DIAGNOSIS > [BCM]
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ID Read
The registered ID number is displayed.
ID Regist
Refer to
WT-6, "ID Registration Procedure".
SELF-DIAG RESULTS MODE
Operation Procedure
Refer to WT-12, "Self-Diagnosis (With CONSULT-III)".
DATA MONITOR MODE
Screen of data monitor mode is displayed. Refer to WT-11, "CONSULT-III Function (BCM)".
NOTE:
When malfunction is detected, CONSUL T-III perform REAL-TIME DIAGNOSIS.
Also, any malfunction detected while in this mode will be displayed at real time.
ACTIVE TEST MODE
NOTE:
Before performing the self-diagnosis, be sure to register the ID, or else the actual malfunction may be different
from that displayed on CONSULT-III.
TEST ITEM LIST
THEFT ALM
THEFT ALM : CONSULT-III Function (BCM - THEFT ALM)INFOID:0000000003776406
WORK SUPPORT
Test item Content
WARNING LAMP This test is able to check to make sure that the warning lamp turns on.
ID REGIST WARNING This test is able to check to make sure that the buzzer sounds or the warning lamp turns on.
FLASHER This test is able to check to make sure that each turn signal lamp turns on.
HORN This test is able to check to make sure that the horn sounds.
Work Item Description
SECURITY ALARM SET Vehicle security function mode can be changed in this mode.
 ON: Vehicle security function is ON.
 OFF: Vehicle security function is OFF.
Revision: December 20092009 QX56

BR-10
< BASIC INSPECTION >
BRAKE BOOSTER
BRAKE BOOSTER
InspectionINFOID:0000000003772419
OPERATION
With engine stopped, change vacuum to atmospheric pressure by
depressing brake pedal several times. Then with brake pedal fully
depressed, start engine and when vacuum pressure reaches the
standard, make sure that clearance between brake pedal and floor
panel decreases.
AIR TIGHT
• Run engine at idle for approximately 1 minute, and stop it afterapplying vacuum to booster. Depress brake pedal normally to
change vacuum to atmospheric pressure. Make sure that distance
at intervals of 5 seconds between brake pedal and floor panel
gradually increases.
• Depress brake pedal while engine is running, and stop engine with pedal depressed. The pedal stroke should not change after holding pedal down for 30 seconds.
BRA0037D
SBR365AA
Revision: December 20092009 QX56

NORMAL OPERATING CONDITIONBRC-109
< SYMPTOM DIAGNOSIS > [VDC/TCS/ABS]
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NORMAL OPERATING CONDITION
DescriptionINFOID:0000000003772630
Symptom Result
Slight vibrations are felt on the brake pedal and the operation noises occur, when VDC, TCS or ABS is acti-
vated. This is a normal condi-
tion due to the VDC,
TCS or ABS activation.
Stopping distance is longer than that of vehicles without ABS when the vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
The brake pedal moves and generates noises, when TCS or VDC is activated due to rapid acceleration or
sharp turn.
The brake pedal vibrates and motor operation noises occur from the engine room, after the engine starts and
just after the vehicle starts. This is normal, and it is
caused by the ABS op-
eration check.
Depending on the road conditions, the driver may experience a sluggish feel. This is normal, because
TCS places the highest
priority on the optimum
traction (stability).
TCS may activate momentarily if wheel speed changes when driving over location where friction coefficient
varies, when downshifting, or when fully depressing accelerator pedal.
The ABS warning lamp, VDC OFF indicato
r lamp and SLIP indicator lamp may turn ON when the vehicle is
subject to strong shaking or large vibration, such as when the vehicle is rotating on a turntable or located on
a ship while the engine is running. In this case, restart the
engine on a normal
road. If the normal con-
dition is restored, there
is no malfunction. At
that time, erase the self-
diagnosis memory.
VDC may not operate normally or the ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp
may illuminate, when running on a special road that is extremely slanted (e.g. bank in a circuit course).
A malfunction may occur in the yaw rate/side/decel G sensor system, when the vehicle turns sharply, such
as during a spin turn, axle turn, or drift driving, while the VDC function is off (VDC OFF indicator lamp illumi-
nated).
The vehicle speed will not increase even though the accelerator pedal is depressed, when inspecting the
speedometer on a 2-wheel chassis dynamometer.
Normal (Deactivate the
VDC/TCS function be-
fore performing an in-
spection on a chassis
dynamometer.)
VDC OFF indicator lamp and SLIP indicator lamp may simultaneously turn on when low tire pressure warn-
ing lamp turns on. This is not a VDC sys-
tem error but results
from characteristic
change of tire.
Revision: December 20092009 QX56

DEF-6
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000004223690
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
REAR WINDOW DEFOGGER
Diagnosis mode Function Description
WORK SUPPORT Changes the setting for each system function.
SELF-DIAG RESULTS Displays the diagnosis results judged by BCM. Refer to BCS-51, "
DTCIndex".
CAN DIAG SUPPORT MNTR Monitors the reception status of CAN communication viewed from BCM.
DATA MONITOR The BCM input/output signals are displayed.
ACTIVE TEST The signals used to activate each device are forcibly supplied from BCM.
ECU IDENTIFICATION The BCM part number is displayed.
CONFIGURATION • Enables to read and save the vehicle specification.
• Enables to write the vehicle specification when replacing BCM.
System
Sub system selection item Diagnosis mode
WORK SUPPORT DATA MONITOR ACTIVE TEST
BCM BCM ×
Door lock DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ×
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Remote keyless entry system MULTI REMOTE ENT ××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ××
Air conditioner AIR CONDITONER ×
Intelligent Key system INTELLIGENT KEY ×
Combination switch COMB SW ×
Immobilizer IMMU ××
Interior room lamp battery saver BATTERY SAVER ×××
Back door open TRUNK ××
RAP (retained accessory power) RETAINED PWR ×××
Signal buffer system SIGNAL BUFFER ××
TPMS (tire pressure monitoring sys-
tem) AIR PRESSURE MONITOR
×××
Vehicle security system PANIC ALARM ×
Revision: December 20092009 QX56

AUTOMATIC DOOR LOCKSDLK-11
< FUNCTION DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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If a door is opened and closed at any time during one ignition cycle (O\
FF → ON), even after initial auto door
lock has taken place, the BCM will relock all doors w hen the vehicle speed reaches 24 km/h (15 MPH) or more
again.
Setting change of Automatic Door Locks (LOCK) Function
The unlock operation setting of the aut omatic door locks function can be changed.
With CONSULT-III
The ON/OFF switching of the automatic door locks (LOCK) function and the type selection of the automatic
door locks (LOCK) function can be performed at the WO RK SUPPORT setting of CONSULT-III. Refer to DLK-
52, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)".
Without CONSULT- III
The automatic door locks (LOCK) function can be swit ched ON/OFF by performing the following operation.
1. Close all doors (door switch OFF).
2. Turn ignition switch ON.
3. Within 20 seconds of turning the ignition switch ON, press and hold the door lock and unlock switch to the LOCK position for more than 5 seconds.
4. The switching is completed when the hazard lamps blink.
5. The ignition switch must be turned OFF and ON again between each setting change.
AUTOMATIC DOOR LOCKS (UNLOCK OPERATION)
The automatic door locks (UNLOCK) function is the function that unlocks all doors linked with the key position.
IGN OFF Interlock Door Unlock*1
All doors are unlocked when the power supply position is changed from ON to OFF.
BCM outputs the unlock signal to all door lock actuator s when it detects that the power supply position is
changed from ignition switch ON to OFF.
Setting change of Automatic Door Locks (UNLOCK) Function
The unlock operation setting of the aut omatic door locks function can be changed.
With CONSULT-III
The ON/OFF switching of the automatic door locks (UNL OCK) function and the type selection of the automatic
door locks (UNLOCK) function can be performed at the WORK SUPPORT setting of CONSULT-III. Refer to
DLK-52, "
DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)".
Without CONSULT- III
The automatic door locks (UNLOCK) function can be sw itched ON/OFF by performing the following operation.
1. Close all doors (door switch OFF).
2. Turn ignition switch ON.
3. Within 20 seconds of turning the ignition switch ON, press and hold the door lock and unlock switch to the UNLOCK position for more than 5 seconds.
4. The switching is completed when the hazard lamps blink.
5. The ignition switch must be turned OFF and ON again between each setting change.
*1: This function is set to ON before delivery.
OFF → ON : 2 blinks
ON → OFF : 1 blink
OFF → ON : 2 blinks
ON → OFF : 1 blink
Revision: December 20092009 QX56

DLK-14
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK FUNCTION
DOOR LOCK FUNCTION
DOOR LOCK AND UNLOCK SWITCH
DOOR LOCK AND UNLOCK SWITCH : System DiagramINFOID:0000000003775675
DOOR LOCK AND UNLOCK SW
ITCH : System DescriptionINFOID:0000000003775676
DOOR LOCK FUNCTION
Functions Available by Operating the Door Lock an d Unlock Switches on Driver Door and Passenger Door
• Interlocked with the locking operation of door lock and unlock switch, door lock actuators of all door lock
actuators are locked.
• Interlocked with the unlocking operation of door lock and unlock switch, door lock actuators of all door lock
actuators are unlocked.
Functions Available by Operating the Key Cylinder Switch on Driver Door
• Interlocked with the locking operation of door key cyli nder, door lock actuators of all door lock actuators are
locked.
Selective Unlock Operation
• When door key cylinder is unlocked, door lo ck actuator driver side is unlocked.
• When door key cylinder is unlocked for the second time within 5 seconds after the first operation, door lock actuators on all doors are unlocked.
Select unlock operation mode can be changed using DOOR LOCK-UNLOCK SET mode in “WORK SUP-
PORT”. Refer to DLK-52, "
DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)".
Key Reminder System
Refer to DLK-44, "System Description".
ALKIA0703GB
Switch Input/output signal to BCM BCM functionActuator
Main power window and door
lock/unlock switch Door lock/unlock signal Door lock/unlock control Door lock actuator
Power window and door lock/
unlock switch
Door key cylinder switch
Revision: December 20092009 QX56

DLK-16
< FUNCTION DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
DOOR LOCK FUNCTION
DOOR REQUEST SWITCH
DOOR REQUEST SWITCH : System DiagramINFOID:0000000003775679
DOOR REQUEST SWITCH : System DescriptionINFOID:0000000003775680
Only when pressing the request switch, it is possible
to lock and unlock the door by carrying the Intelligent
Key.
• The Intelligent Key system is a system that makes it possible to lock and unlock the door locks (door lock/
unlock function) by carrying the Intelligent Key, which operates based on the results of electronic ID verifica-
tion using two-way communications between the Intelligent Key and the vehicle (BCM).
CAUTION:
The driver should always carry the Intelligent Key
• If an action that does not meet the operating conditions of the Intelligent Key system is taken, the buzzer
goes off to inform the driver (Warning chime function).
• When a door lock is locked or unlocked with request switch or remote controller button operation, the hazard
lamps flash and the Intelligent Key warning buzzer or horn sounds (Hazard and buzzer/horn reminder func-
tion).
• The settings for each function can be changed with the CONSULT-III.
• If an Intelligent Key is lost, a new Intelligent Key can be registered. A maximum of 4 Intelligent Keys can be
registered.
• It is possible to perform a diagnosis on the system and register an Intelligent Key with the CONSULT-III.
OPERATION DESCRIPTION/DOOR LOCK/UNLOCK
• When the BCM detects that each door request switch is pressed, it starts the outside key antenna and inside
key antenna corresponding to the pressed door request swit ch and transmits the request signal to the Intelli-
gent Key. And then, check that t he Intelligent Key is near the door.
• If the Intelligent Key is within the outside key ant enna detection area, it receives the request signal and
transmits the key ID signal to the BCM via remote keyless entry receiver.
• BCM receives the key ID signal and compares it with the registered key ID.
• BCM sends the door lock/unlock signal and sounds Intelli gent Key buzzer warning (lock: 2 times, unlock: 1
time) at the same time as a reminder.
OPERATION CONDITION
If the following conditions are not satisfied, door lock/unlock operation is not performed even if the request
switch is operated.
Door switch Transmits door open/close condition to BCM.
Passenger select unlock relay Enables or disables the unlocking of rear doors when this Intelligent Key option is selected. Item
Function
ALKIA0704GB
Revision: December 20092009 QX56

DOOR LOCK FUNCTIONDLK-17
< FUNCTION DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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*: Even with a registered Intelligent Key remaining inside the vehicle, door locks can be unlocked from outside of the vehicle with a spare
Intelligent Key as long as key IDs are different.
OUTSIDE KEY ANTENNA DETECTION AREA
The outside key antenna detection area of door lock/unlock function
is in the range of approximately 80 cm (31.50 in) surrounding the
driver and passenger door handles (1).
OUTSIDE KEY ANTENNA DETECTION AREA
The outside key antenna detection area of back door lock/unlock
function is in the range of approximately 80 cm (31.50 in) surround-
ing the back door handle (1).
SELECTIVE UNLOCK FUNCTION
When a LOCK signal is sent from door request switch (driver side or passenger side), all doors will be locked.
When an UNLOCK signal is sent from door request switch (driver side or passenger side) once, driver's door
will be unlocked.
Then, if an UNLOCK signal is sent from door request switch (driver side and passenger side) again within 5
seconds, all other doors will be unlocked.
HAZARD AND BUZZER REMINDER FUNCTION
During lock or unlock operation by each request switch, the hazard warning lamps and Intelligent Key warning
buzzer will blink or honk as a reminder.
When doors are locked, unlocked by each request switch, IPDM E/R honks Intelligent Key warning buzzer as
a reminder and transmits hazard request signal to BCM via CAN communication line.
BCM flashes hazard warning lamps as a reminder.
Operating function of hazard warning lamps and buzzer reminder
How to change hazard and buzzer reminder mode
Refer to DLK-55, "
INTELLIGENT KEY : CONSULT-III F unction (BCM - INTELLIGENT KEY)".
AUTO DOOR LOCK FUNCTION
Each request switch operation Operation condition
Lock operation • All doors are closed
• Ignition switch is in OFF position
• Intelligent Key is outside the vehicle
• Intelligent Key is within outside key antenna detection area
Unlock Operation • Intelligent Key is outside the vehicle
• Intelligent Key is within outside key antenna detection area *
ALKIA0582ZZ
ALKIA0581ZZ
Operation
Hazard warning lamps flash Intelligent Key warning buzzer sounds
Unlock OnceOnce
Lock Twice Twice
Back door open —Four times
Revision: December 20092009 QX56